<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="题目" prop="title">
        <el-input
          v-model="queryParams.title"
          placeholder="请输入题目"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="分类" prop="categoryId">
        <el-select v-model="queryParams.categoryId" placeholder="分类" clearable>
          <el-option
            v-for="dict in newsCategoryList"
            :key="dict.id"
            :label="dict.name"
            :value="dict.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:news:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:news:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:news:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:news:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="newsList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="题目" align="center" width="355" prop="title" />
      <el-table-column label="作者" align="center" prop="author" />
      <el-table-column label="封面图片" align="center" prop="coverImgPath">
        <template slot-scope="scope">
          <image-preview :src="scope.row.coverImgPath" :width="50" :height="50" />
        </template>
      </el-table-column>
      <el-table-column label="浏览次数" align="center" width="80" prop="hits" />
      <el-table-column label="发布时间" align="center" prop="publishDate" width="80">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.publishDate, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="是否外链" align="center" width="80" prop="isOuturl">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.by_status" :value="scope.row.isOuturl"/>
        </template>
      </el-table-column>
      <el-table-column label="是否飘窗" align="center" width="80" prop="isBaywindow">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.by_status" :value="scope.row.isBaywindow"/>
        </template>
      </el-table-column>
      <el-table-column label="是否发布" align="center" width="80" prop="isPublish">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.by_status" :value="scope.row.isPublish"/>
        </template>
      </el-table-column>
      <el-table-column label="排序" align="center" width="80" prop="sort" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:news:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:news:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改新闻对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="800px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="12">
            <el-form-item label="题目" prop="title">
              <el-input v-model="form.title" placeholder="请输入题目" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="发布时间" prop="publishDate">
              <el-date-picker clearable
                v-model="form.publishDate"
                type="date"
                value-format="yyyy-MM-dd"
                placeholder="请选择发布时间">
              </el-date-picker>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="是否外链" prop="isOuturl">
              <el-radio-group v-model="form.isOuturl">
                <el-radio
                  v-for="dict in dict.type.by_status"
                  :key="dict.value"
                  :label="dict.value"
                >{{dict.label}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12"> 
            <el-form-item label="是否飘窗" prop="isBaywindow">
              <el-radio-group v-model="form.isBaywindow">
                <el-radio
                  v-for="dict in dict.type.by_status"
                  :key="dict.value"
                  :label="dict.value"
                >{{dict.label}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="作者" prop="author">
              <el-input v-model="form.author" placeholder="请输入作者" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="浏览次数" prop="hits">
              <el-input v-model="form.hits" placeholder="请输入浏览次数" />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="是否发布" prop="isPublish">
              <el-radio-group v-model="form.isPublish">
                <el-radio
                  v-for="dict in dict.type.by_status"
                  :key="dict.value"
                  :label="parseInt(dict.value)"
                >{{dict.label}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="排序" prop="sort">
              <el-input v-model="form.sort" placeholder="请输入排序" />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-form-item label="摘要" prop="abstract">
            <el-input v-model="form.abstract" type="textarea" placeholder="请输入内容" />
          </el-form-item>
        </el-row>
        <el-row>
          <el-form-item label="关键词" prop="keywords">
            <el-input v-model="form.keywords" placeholder="请输入关键词" />
          </el-form-item>
        </el-row>
        <el-row>
          <el-form-item label="新闻分类" prop="keywords">
            <el-select v-model="form.categoryId" placeholder="分类">
              <el-option
                v-for="dict in newsCategoryList"
                :key="dict.id"
                :label="dict.name"
                :value="dict.id"
              />
            </el-select>
          </el-form-item>
        </el-row>
        <el-row>
          <el-form-item label="封面图片" prop="coverImgPath">
            <image-upload
              v-model="form.coverImgPath"
              :limit="1"
              accept=".png,.jpeg,.jpg,.gif,.bmp"
              :fileType="['png', 'jpeg', 'jpg', 'gif', 'bmp']"
            />
          </el-form-item>
        </el-row>
        <el-row>
          <el-form-item label="正文">
            <editor v-model="form.content" :min-height="192"/>
          </el-form-item>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listNews, getNews, delNews, addNews, updateNews } from "@/api/system/news";
import { listNewscategoryAll } from "@/api/system/newscategory";

export default {
  name: "News",
  dicts: ['by_status'],
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 新闻表格数据
      newsList: [],
      // 新闻表格数据
      newsCategoryList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        publishDate: null,
        createDate: null,
        updateDate: null,
        categoryId: null,
        title: null,
        isOuturl: null,
        isBaywindow: null,
        author: null,
        hits: null,
        isPublish: null,
        sort: null,
        abstract: null,
        keywords: null,
        coverImgPath: null,
        content: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      }
    };
  },
  created() {
    this.getList();
    listNewscategoryAll().then(response => {
      console.log(response)
      this.newsCategoryList = response.rows
    });
  },
  methods: {
    /** 查询新闻列表 */
    getList() {
      this.loading = true;
      listNews(this.queryParams).then(response => {
        this.newsList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        publishDate: null,
        createDate: null,
        updateDate: null,
        categoryId: null,
        title: null,
        isOuturl: null,
        isBaywindow: null,
        author: null,
        hits: null,
        isPublish: null,
        sort: null,
        abstract: null,
        keywords: null,
        coverImgPath: null,
        content: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加新闻";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getNews(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改新闻";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateNews(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addNews(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除新闻编号为"' + ids + '"的数据项？').then(function() {
        return delNews(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/news/export', {
        ...this.queryParams
      }, `news_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
